Pipe-grip.



PATENTED DEC. 12, 1905.

D. W. STIRLING.

PIPE GRIP.

APPLIGATION FILED JULY 10, 1905.

' M67375]? 5 War/z UNITE, STATES PATENT OFFICE.

DAVID W. STIRLING, OF GLADE MILLS, PENNSYLVANIA, ASSIGNOR OF ONE-THIRD TO J AGOB DAUBENSPECK AND ON E-THIRD TO HENRY ORUMMY, OF GLADE MILLS, PENNSYLVANIA.

PIPE-GRIP.

Specification of Letters Patent.

Patented Dec. 12, 1905.

Application filed July 10,1905- Serial No. 268,991-

To all whom it may concern.-

Be it known that I, DAVID W. STIRLING, a citizen of the United States of America, residing at Glade Mills, in the county of Butler and State of Pennsylvania, have invented certain new and useful Improvements in Pipe- Grips, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to certain new and useful improvements in grips for pipes and round surfaces; and the invention has for its object the provision of novel means for gripping a pipe, whereby it can be rotated or moved.

The device devised by me is particularly adapted for use in connection with largesized pipes, which are rather cumbersome and hard to handle.

In constructing my improved. gripping device I have embodied a simple, strong and durable, and inexpensive construction which will withstand the rough usage to which devices of this character are subjected.

Briefly described, my improved gripping device consistsof two substantially semicircular hinged straps having rough surfaces adapted to engage the periphery of a pipe. One of the straps is provided with an eyelet to which the end of a rope is adapted to be secured while the other strap is provided with a hook-shaped end over which the rope is adapted to engage.

The above construction will be hereinafter more fully described. and then specifically pointed out in the claims, and, referring to the drawings accompanying this application, like numerals of reference designate corresponding parts throughout the several views, in which Figure 1 is a perspective view of my improved gripping device in an open position. Fig. 2 is a similar view of the gripping device applied to a pipe, and Fig. 3 is a fragmentary elevation view of one of the straps of the grip.,

To put my invention into practice, I construct my improved grip of two substantially semicircular straps 1 and 2, which are hinged together, as indicated at 3, by a conventional form of hinge. The confronting or inner surfaces of the straps are notched by upsetting the material of the straps to provide PIOJBC- tions or teeth 4, which are adapted to engage in the periphery 5 of a pipe or object upon which the grip is placed.

The upper end of the strap 2 is formed with an eyelet 6, which is twisted or turned at right angles to the strap 2, as clearly illustrated in Fig. 3 of the drawings. This eyelet is provided with a link 7, to which one end of a cable or rope 8 is suitably attached.

The upper end of the strap 1 is provided with a contracted hook-shaped end 9, and when the device is placed upon a pipe or ob ject, as illustrated in Fig. 2 of the drawings, the rope 8 is passed under the hook-shaped end 9 of the strap 1, and by drawing upon the rope or cable in the direction of the strap 2 the two parts of the device can be drawn into engagement with the periphery 5 of the pipe.

By the use of my device a grip which is not liable to slip on the pipe is obtained, and thus it is possible to eifect longitudinal movement of the pipe with greater facility than ordinarily. I

I preferably construct my improved gripping device of a light and durable metal, such as steel, and it may be made of various sizes to be used in connection with various sizes of pipes.

It is thought from the foregoing that the construction, operation, and advantages of the herein-described pipe-grip will be apparent without further description, and various changes in the form, proportion, and minor details of construction may be resorted to without departing from the spirit of the invention or sacrificing any of the advantages thereof.

What I claim, and desire to secure by Let ters Patent, is

1. A gripping device of the character described consisting of two substantially semicircular straps hinged together, an eyelet carried by one of said straps, the other of said straps having a substantially hook-shaped end, and projections or teeth carried by the inner or confronting faces of said straps, substantially as described. I

2. A gripping device of the character described consisting of two straps hinged together, an eyelet carried by one of said straps, a link carried by said eyelet and adapted to be attached to a rope, the other of said straps having a-substantially hook-shaped end over straps havingahookv-shaped end with which which the rope is adapted to engage, and pro said flexible connection is adapted to engage. IO n jeotions carried by the confronting or inner In testimony Whereoflafiix my signaturejin faces of said straps, substantiallyas described. the presence ofgtwo witnesses.

F" 3. A gripping device consisting of two DAVID. S ERLING. K

straps hinged together, an eyelet carried by Witnesses: the free end of one strap, a flexible connec-- A. L. EMRY,

tion attached to said eyelet, the other of said! J. A. SNYDER. 

